Loop aerial



J; Mcw. STONE LOOP AERIAL Jan. 4,1927. .613.333

File d Oct. 31, 1923 2 Sheets-Sheet *1 be n 1,613,333 .1. M w. STONELoo? AERIAL Jan. 4, 1927.

Filed Oct. 31, 1925 I 2 Sheets-Sheet 2 Patented Jan. 4, 1927.

1,613,333- UNITED STATES PATENT OFFICE.

TOHN MoWILLIAMS STONE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE OPERADIOCORPORATION, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

LOOP AERIAL.

Application filed October 31. 1923. Serial No. 671,931.

This invention relates to loop aerials for radio receiving apparatus andis particularly adapted to be used in connection with small portablesets.

The invention is fully described in the following specification andshown in the accompanying drawings in which:

igure 1 is a perspective View of a case enclosing a complete radioreceiving set having a removable cover which encloses the loop aerial;

Fig. 2 shows the cover removed and assembled for use as the aerial ofthe set;

Fig. 3 is an enlarged partial section showing the connection formounting said aerial on the set;

Fig. 4 is a back view of the cover with the inner coating removedshowing the wiring of the loop;

Figs. 5 and 6 are enlarged partial views on the lines 5 and 6 of Fig. 4;and

Fig. 7 is a partial front elevation of the hinge shown in Fig. 6.

The embodiment shown comprises a set of radio receiving apparatusconsisting of a box 10 closed onfour sides, but having a removable front11 and top 12 which are connected together throughout the greater partof their length by means of a piano hinge 13. When used as a cover forthe set it is secured to the box 10 by means of suitable -fasteners 14and 15, the top 12 being supplied by a handle 16 so that the case may bereadily carried.

Upon the back of this cover is wound a number of turns of suitableflexible insulated wire 17 upon corner pins 18 or the like. The hinge 13is cut away near the ends at that portion where these wires cross it;The wire 19 forming the pivot of the hinge 13 continues through thisspace and is enclosed at this point by a tube 20 of insulating material,As each wire passes this tube it is given one turn about it as shown inFigs. 4 and 7 the wire then continuing on in substantially a straightline to the next corner pin. 7

This. arrangement provides a very flexible mounting for the wires sothat they W111 readily permit the sections 11 and 12 to be bent at rightangles to each other as shown in Fig. l, or thetube straightened intothe form shown in Fig. 2. The inside of these sections is then coveredwith a liner 21 of a suitable material as cloth, care being taken,

however, that it does not have any material which will have anysubstantial amount of electrical capacity.

The two ends of the wire tube 17 are con- I nected to tubular terminals22 and 23 which on i are adapted to receive the pins 24 and 25 of theconnector 26. The pins 24 and 25 are connected .to the metal pin 27 andtube 28 respectively which are of a well known plug construction. Adowel pin 29 on the'connector 26 insures the pins of the connectorconnecting the plug holes to the same'terminals of the loop.

A cleat 30 is mounted upon the inner face of the front 11 by means of apin.31. When the pin is turned to the portion shown in Fig. 2 it retainsthe cover members in the open position, and when it is desired toturn itat right angles as in Fig. 1, the cleat 30 is turned about the pin 31 toan angle of 90 degrees.

l/Vhen used as an aerial, it is assembled as shown in Fig. 2, the plug28 being inserted in a suitable socket (not shown) in the top of the setwhich is hidden in Fig. 1, by the cover 12. i

While I have shown and described certain embodiments of my invention, itis to be understood that it is capable of many modifications. Changestherefore in the construction and arrangement may be made withoutdeparting from the spirit and scope of the invention as disclosedclaims, in which it is my intention claim all novelty inherent in myinvention as in the appended broadly as possible in view of the priorart. I

1. A loop aerial comprising two rigid sections hingedly connectedtogether, and a lurality of turns of a loop aerial mounte on saidsections whereby said loop may be flexed about said hinge when not usedas an aerlal, and means for holding said sectlons 1n flat relation whenused as an aerial.

2. A loop aerial comprising two rigid sections hingedly connectedtogether, and a plurality of turns of a loop aerial mounted on saidsections, the wires of each turn being coiled about the axis of thehinge, whereby said loop ma be flexed about said hinge when not use asan aerial.-

3. A loop aerial comprising two rigid sections hingedly connectedtogether, a plurality of turns of a loop aerial mounted on said sectionswhereby said loop may be flexed no about said hinge when not used as anaerial,

the ends of the loop being connected to terminals adapted to receive aplug by which the aerial is mounted, and means for holdingsaid sectionsin fiat relation. g l 4:. A loop aerial comprising. two rigid sectionshingedly connected together, a plurality nals adapted to receive a plugby which the aerial is, mounted and a cleat pivotally mounted on theinside of sections and adaptedto be turned to hold said sections in flatrelations I 5; A removable cover for a radlo recelving set casecomprising two sections covering one side and the top of the case, saidsections being hingedly connected together whereby to adapt the same tobe used as a cover and'to be swung to vertical position on their hinge,a loop aerial secured to said sections and foldable therewith, and meansfor mounting said aerial in vertical extended position on the case.

Y 6. A cover for a radio receiving set case, a loop aerial carried bysaid cover, and coacting means on said case and coverwhereby the covermay be mounted on the case for free revolution thereon and in verticalrelation thereto with said loop aerial in electrical connection withtheradio receiving set within the case.

JOHN MQWILLIAMS sronn

